'\"macro stdmacro
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.TH PMWHICHZONE 3 "PCP" "Performance Co-Pilot"
.SH NAME
\f3pmWhichZone\f1 \- return current reporting timezone
.SH "C SYNOPSIS"
.ft 3
#include <pcp/pmapi.h>
.sp
int pmWhichZone(char **\fItz\fP);
.sp
cc ... \-lpcp
.ft 1
.SH DESCRIPTION
The current reporting timezone effects the timezone used by
.BR pmCtime (3)
and
.BR pmLocaltime (3).
.PP
.B pmWhichZone
returns the handle of the current timezone,
as previously established by
a call to
.BR pmNewZone (3)
or
.BR pmNewContextZone (3).
If the call is successful (i.e. there exists a current reporting timezone)
then a non-negative integer is returned and
.I tz
is set to point to a static buffer containing the timezone string itself.
.SH SEE ALSO
.BR PMAPI (3),
.BR pmCtime (3),
.BR pmLocaltime (3),
.BR pmNewContextZone (3),
.BR pmNewZone (3)
and
.BR pmUseZone (3).
.SH DIAGNOSTICS
A return value less than zero indicates there is no current reporting timezone.
